451 resultados para catalogues
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Mode of access: Internet.
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Mode of access: Internet.
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Titles vary.
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Mode of access: Internet.
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Catalogue of the officers, faculty and students for the academic year 1859-60 / Ypsilanti Union School -- Biennial catalogue and circular of the officers, teachers and pupils of the Ypsilanti Union Seminary : together with the courses of study, rules and regulations for the school year 1868-69 -- Union Lyceum, public, Ypsilanti Seminary, Saturday eve., Feb. 26, '70 [program] : order of exercises -- Ninth annual commencement of the Ypsilanti Union Seminary, Friday evening, June 24, 1870 -- Circular containing organization, courses of study and rules and regulations of the public schools of Ypsilanti, Michigan, 1885 -- Circular of the Ypsilanti high school for the academic year 1885-86 -- Annual report and circular containing courses of study of the public schools of Ypsilanti, Michigan, 1892 -- Announcement, Ypsilanti public schools, 1892-93 -- Circular of information, August, 1895 / Ypsilanti High School -- Catalog of the officers, instructors, and students of the Ypsilanti High School for the school year 1898-99 -- Catalog of the officers, instructors, and students of the Ypsilanti High School, for the school year 1899-1900 -- Catalog of the officers, teachers, and students of the Ypsilanti High School for the school year 1900-1901 -- Commemoration exercises celebrating the close of the nineteenth century high school hall, Thursday evening, Dec. 20, 1900 / Ypsilanti High School -- Annual report of the Superintendent of the public schools of Ypsilanti, Michigan for the school year 1908-1909 -- The public schools, Ypsilanti, Michigan : course of study, rules and regulations, reports for 1910-11 and general information -- Annual catalogue, 1911-12 / high school, Ypsilanti, Michigan.
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Title from spine.
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We consider the statistical problem of catalogue matching from a machine learning perspective with the goal of producing probabilistic outputs, and using all available information. A framework is provided that unifies two existing approaches to producing probabilistic outputs in the literature, one based on combining distribution estimates and the other based on combining probabilistic classifiers. We apply both of these to the problem of matching the HI Parkes All Sky Survey radio catalogue with large positional uncertainties to the much denser SuperCOSMOS catalogue with much smaller positional uncertainties. We demonstrate the utility of probabilistic outputs by a controllable completeness and efficiency trade-off and by identifying objects that have high probability of being rare. Finally, possible biasing effects in the output of these classifiers are also highlighted and discussed.
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An emerging issue in the field of astronomy is the integration, management and utilization of databases from around the world to facilitate scientific discovery. In this paper, we investigate application of the machine learning techniques of support vector machines and neural networks to the problem of amalgamating catalogues of galaxies as objects from two disparate data sources: radio and optical. Formulating this as a classification problem presents several challenges, including dealing with a highly unbalanced data set. Unlike the conventional approach to the problem (which is based on a likelihood ratio) machine learning does not require density estimation and is shown here to provide a significant improvement in performance. We also report some experiments that explore the importance of the radio and optical data features for the matching problem.
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Through media such as newspapers, letterbox flyers, corporate brochures and television we are regularly confronted with descriptions for conventional (bricks 'n' mortar style) services. These representations vary in the terminology utilised, the depth of the description, the aspects of the service that are characterised and their applicability to candidate service requestors. Existing service catalogues (such as the Yellow Pages) provide little relief for service requestors from the burdensome task of discovering, comparing and substituting services. Add to this environment the rapidly evolving area of web services with its associated surfeit of standards, and the result is a considerably fragmented approach to the description of services. It leaves the reality of the Semantic Web somewhat clouded. --------- Let's consider service description briefly, before discussing our concerns with existing approaches to description. The act of describing is performed prior to advertising. This simple fact provides an interesting paradox as services cannot be described exactly before advertisement. This doesn't mean they can't be described comprehensively. By "exactly", we are referring to the fact that context provided by a service requestor (and their service needs) will alter the description of the service that is presented to the discoverer. For example, a service provider who operates a cinema wants to describe the price of their service. Let's say the advertised price is $15. They also want to state that a pensioner discount and a student discount is available which provides a 50% discount. A customer (i.e. service requestor) uses the cinema web site to purchase tickets online. They find the movie of their choice at a time that suits. However, its not until some context is provided by the requestor that the exact price is determined. The requestor might state that they are a pensioner. The same is applicable for a service requestor who purchases multiple tickets perhaps on behalf of other people. The disconnect between when the service is described and when a requestor provides context introduces challenges to the description process. A service provider would be ill-advised to offer independent descriptions that represent all the permutations possible for a single service. The descriptive effort would be prohibitive.
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This article is an analysis and contextualisation of 'Super Vanitas' a video installation by Stephen Russell that was held at Boxcopy ARI, Brisbane. It discusses the significance of the painting 'Death of Marat' (J.L. David, 1793) to the work and describes the methodological processes that are revealed in the work.